Class 9 Science - The Fundamental Unit of Life

The basic structural and functional unit of life is:

• Tissue

• Organ

• Cell

• Organism

The term “cell” was first coined by:

• Robert Brown

• Robert Hooke

• Schleiden

• Schwann

Nucleus was discovered by:

• Robert Hooke

• Robert Brown

• Watson

• Crick

Cell theory was proposed by:

• Hooke & Brown

• Schleiden & Schwann

• Watson & Crick

• Virchow

“Omnis cellula e cellula” (all cells arise from pre-existing cells) was given by:

• Schleiden

• Schwann

• Virchow

• Brown

The jelly-like substance inside cell is:

• Cytoplasm

• Protoplasm

• Nucleus

• Plastid

Powerhouse of the cell is:

• Chloroplast

• Ribosome

• Mitochondria

• Golgi body

Green pigment in chloroplast is:

• Carotene

• Chlorophyll

• Xanthophyll

• Anthocyanin

Cell wall is present in:

• Animal cell only

• Plant cell only

• Both plant & animal

• Bacteria only

Which controls all activities of cell?

• Cytoplasm

• Mitochondria

• Nucleus

• Ribosome